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Merge pull request #10021 from bdach/unstable-rate-exclude-misses

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Exclude misses and empty window hits from unstable rate calculations
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Dan Balasescu 2020-08-31 23:41:37 +09:00 committed by GitHub
commit db7497538b
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3 changed files with 53 additions and 2 deletions
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43
osu.Game.Tests/NonVisual/Ranking/UnstableRateTest.cs Normal file
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@ -0,0 +1,43 @@
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using System;
using System.Linq;
using NUnit.Framework;
using osu.Framework.Utils;
using osu.Game.Rulesets.Objects;
using osu.Game.Rulesets.Scoring;
using osu.Game.Screens.Ranking.Statistics;
namespace osu.Game.Tests.NonVisual.Ranking
{
[TestFixture]
public class UnstableRateTest
{
[Test]
public void TestDistributedHits()
{
var events = Enumerable.Range(-5, 11)
.Select(t => new HitEvent(t - 5, HitResult.Great, new HitObject(), null, null));
var unstableRate = new UnstableRate(events);
Assert.IsTrue(Precision.AlmostEquals(unstableRate.Value, 10 * Math.Sqrt(10)));
}
[Test]
public void TestMissesAndEmptyWindows()
{
var events = new[]
{
new HitEvent(-100, HitResult.Miss, new HitObject(), null, null),
new HitEvent(0, HitResult.Great, new HitObject(), null, null),
new HitEvent(200, HitResult.Meh, new HitObject { HitWindows = HitWindows.Empty }, null, null),
};
var unstableRate = new UnstableRate(events);
Assert.AreEqual(0, unstableRate.Value);
}
}
}

9
osu.Game/Screens/Ranking/Statistics/SimpleStatisticItem.cs
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@ -59,12 +59,19 @@ namespace osu.Game.Screens.Ranking.Statistics
/// </summary>
public class SimpleStatisticItem<TValue> : SimpleStatisticItem
{
private TValue value;
/// <summary>
/// The statistic's value to be displayed.
/// </summary>
public new TValue Value
{
set => base.Value = DisplayValue(value);
get => value;
set
{
this.value = value;
base.Value = DisplayValue(value);
}
}
/// <summary>

3
osu.Game/Screens/Ranking/Statistics/UnstableRate.cs
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@ -20,7 +20,8 @@ namespace osu.Game.Screens.Ranking.Statistics
public UnstableRate(IEnumerable<HitEvent> hitEvents)
: base("Unstable Rate")
{
var timeOffsets = hitEvents.Select(ev => ev.TimeOffset).ToArray();
var timeOffsets = hitEvents.Where(e => !(e.HitObject.HitWindows is HitWindows.EmptyHitWindows) && e.Result != HitResult.Miss)
.Select(ev => ev.TimeOffset).ToArray();
Value = 10 * standardDeviation(timeOffsets);
}